利用GroupBox控件提示当前位置

第一步：创建一个Windows窗体应用程序项目GroupBoxTip。其窗体设计如下：



第二步：添加groupBox进入和离开事件，进入时改变背景色，离开时恢复原来颜色

private Color originalColor;  //原来的背景色

//加载时得到背景色
private void Form1_Load(object sender, EventArgs e)
{
        originalColor = groupBox1.BackColor;
}
  
private void groupBox1_Enter(object sender, EventArgs e)
{
        groupBox1.BackColor = Color.LightBlue;
}

private void groupBox2_Enter(object sender, EventArgs e)
{
       groupBox2.BackColor = Color.LightGreen;
}

private void groupBox2_Leave(object sender, EventArgs e)
{
      goupBox2.BackColor = originalColor;
}

private void groupBox3_Enter(object sender, EventArgs e)
{
     groupBox3.BackColor = Color.LightPink;
}

private void groupBox3_Leave(object sender, EventArgs e)
{
      groupBox3.BackColor = originalColor;
}   

private void groupBox4_Enter(object sender, EventArgs e)
{
     groupBox4.BackColor = Color.LightYellow;
}

private void groupBox4_Leave(object sender, EventArgs e)
{
     groupBox4.BackColor = originalColor;
}

      

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